From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
On the successful development of an induction pipe yielding more power, and a proposal to transfer experiments to the Marmon engine.
| Identifier | ExFiles\Box 32\5\ Scan207 | |
| Date | 2nd February 1923 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} X1692 HsG/LC2.2.23. INDUCTION PIPES. X1692 X2758(crossed out) X4227 We have succeeded in making an induction pipe with the carburetter fitted on the exhaust side of the engine to equal the results obtained on the present standard pipe as regards distribution and power. At the high speeds we get 5 to 6% more power. We are sending a report on this pipe. We suggest now that Seagull inlet and exhaust passages have been arranged in a similar way to the Goshawk instead of separate induction inlets, it would be better if we transferred our experiments on induction pipes on to the Marmon engine. This engine has the inlet and exhaust ports arranged in a similar manner to the Seagull. The same cylinders have the common inlet ports but the exhaust starts on the outside ports. We shall shortly be running this engine on the Test Bench. We shall first of all try it with its present standard induction pipes and carburetter and then try a pipe as suggested for the Seagull. Hs.{Lord Ernest Hives - Chair} | ||